[openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

Daniel P. Berrange berrange at redhat.com
Wed Mar 18 10:09:23 UTC 2015

On Wed, Mar 18, 2015 at 08:33:26AM +0100, Thomas Herve wrote:
> > Interesting bug.  I think I agree with you that there isn't a good solution
> > currently for instances that have a mix of shared and not-shared storage.
> > 
> > I'm curious what Daniel meant by saying that marking the disk shareable is
> > not
> > as reliable as we would want.
> I think this is the bug I reported here: https://bugs.launchpad.net/nova/+bug/1376615
> My initial approach was indeed to mark the disks are shareable: the patch (https://review.openstack.org/#/c/125616/) has comments around the issues, mainly around I/Ocache and SELinux isolation being disabled.

Yep, those are both show stopper issues. The only solution is to fix the
libvirt API for this first.

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